Home / 128,998.50-193,448.06-50,102.34

Finding the Fourth Proportional to 128,998.50, 193,448.06 and 50,102.34

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Solution

The fourth proportional to 128,998.50, 193,448.06 and 50,102.34 is: 75,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,998.50 : 193,448.06 = 50,102.34 : x
  2. Step 2: Convert to fraction form
    128,998.50/193,448.06 = 50,102.34/x
  3. Step 3: Cross multiply
    128,998.50x = 193,448.06 × 50,102.34
  4. Step 4: Simplify right side
    128,998.50x = 9,692,200,474.46
  5. Step 5: Solve for x
    x = 9,692,200,474.46/128,998.50
  6. Step 6: Final answer
    x = 75,134.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.